20346818789376 has 400 divisors, whose sum is σ = 61705132315200. Its totient is φ = 6680110694400.

The previous prime is 20346818789333. The next prime is 20346818789383. The reversal of 20346818789376 is 67398781864302.

20346818789376 is a `hidden beast` number, since 2 + 0 + 3 + 468 + 1 + 8 + 7 + 8 + 93 + 76 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2845307401 + ... + 2845314551.

It is an arithmetic number, because the mean of its divisors is an integer number (154262830788).

Almost surely, 2^{20346818789376} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20346818789376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30852566157600).

20346818789376 is an abundant number, since it is smaller than the sum of its proper divisors (41358313525824).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20346818789376 is an frugal number, since it uses more digits than its factorization.

20346818789376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7268 (or 7223 counting only the distinct ones).

The product of its (nonzero) digits is 585252864, while the sum is 72.

The spelling of 20346818789376 in words is "twenty trillion, three hundred forty-six billion, eight hundred eighteen million, seven hundred eighty-nine thousand, three hundred seventy-six".